Rclone

Rclone is a command-line program to manage and sync files on cloud storage. Originally created by Nick Craig-Wood in 2014 as an open-source project, Rclone has over 48,000 stars as of 2026 and is widely regarded as the rsync for cloud storage. Rclone supports over 70 cloud storage providers including Amazon S3, Google Drive, Google Cloud Storage, Microsoft OneDrive, Dropbox, Box, Backblaze B2, Mega, pCloud, Yandex Disk, WebDAV, SFTP, FTP, HTTP, local filesystem, and many more. Key features include: file synchronization (rclone sync for one-way mirror, rclone bisync for two-way sync), file copying (rclone copy for incremental copy), file moving and deletion, mount as filesystem (rclone mount for mounting remote storage as a local drive via FUSE on Linux, WinFsp on Windows, and macFUSE on macOS), encryption (rclone crypt backend for client-side encryption with file name and content encryption), bandwidth limiting (rclone bwlimit for throttling transfer speed), checksum verification (rclone check for comparing files by size and hash), serve protocols (rclone serve sftp, serve http, serve webdav, serve ftp, serve restic, serve s3 for exposing any storage as these protocols), streaming without local disk (reading from stdin and writing to remote), configuration management (rclone config for interactive setup), file filtering with include/exclude patterns, chunked uploads for large files, multi-threaded transfers, resume interrupted transfers, server-side copy and move (when supported by the provider), deduplication (finding and removing duplicate files), and integration with restic backup tool as a storage backend. Rclone is written in Go.